[Ffmpeg-devel] [PATCH] fix mpegaudiodec on ARM and benchmark

Måns Rullgård mru
Tue Sep 12 21:53:00 CEST 2006

Siarhei Siamashka <siarhei.siamashka at gmail.com> writes:

> On Thursday 24 August 2006 11:30, Guillaume Poirier wrote:
>> Siarhei Siamashka wrote:
>> > But anyway I'm glad that at least somebody else is interested in arm
>> > optimizations. I checked ffmpeg commit log and did not see much arm
>> > related changes recently, so was not so optimistic. Well, let's make
>> > ffmpeg faster on this platform :)
>> For what it's worth, there's a forked version of MPlayer for Zaurus
>> which is supposed to be faster on ARM.
>> The author doesn't seem to be receptive to request to send his
>> contributions back as patches, but his fork is available here
>> http://atty.skr.jp/WebSVN/listing.php?repname=mplayer-w100&path=%2Ftrunk%2F
>> Some of the improvement involve using IPP, others to use inline asm.
> Thanks I also checked this code. As far as I understand it, most of the
> improvements from this forked version are already included into ffmpeg
> (revision 4311). The things that are left are some Zaurus specific video
> drivers and patches for libmpeg2 code.
> I'm porting MPlayer to Nokia 770:
> https://garage.maemo.org/projects/mplayer/ The thing that can
> provide the most improvement right now is video output code (make
> use of hardware YUV support). So it will probably still take a while
> before I actually start optimizing ffmpeg using armv5te assembler.

You just answered my question sent in another mail.  Does this mean
that if I looked at some arm assembler, I wouldn't be duplicating
your work?

What about the TMS320 core in the N770?  Has anyone figured out how to
access it?

M?ns Rullg?rd
mru at inprovide.com

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